Abstract: Some examples relating to managing servers distributed across multiple groups are described. For example, techniques for managing servers it assigning an identified server to a group based on analysis of grouping information associated with the identified server. The grouping information includes an access credential and the group includes a set of severs with each server accessible by a common access credential. Further, the techniques include generating multiple node topology maps for the group based on topology characteristics. Each node topology map corresponds to a topology characteristic and indicates a layout and an interconnection between servers in the group. Also a node topology map is selected based on characteristic of an operation to be executed on the servers in the group. Thereafter, a message including an instruction for executing the operation is communicated to a server based on the selected node topology map.